Circular saw



FIG. 1 is a perspective view of a circular saw showing the new design.

FIG. 2 is a front view thereof.

FIG. 3 is a back view thereof.

FIG. 4 is a right side view thereof.

FIG. 5 is a left size view thereof

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines and the areas within the broken lines shown in thedrawings form no part of the claimed ornamental design.

The ornamental design for a circular saw, as shown and described.